From Napa to Santa Cruz, people felt the jolt of a 3.9 earthquake Monday. The epicenter was near the Calaveras fault. We take ...

Known as “blind” thrust faults because they can’t be seen at the surface, they are difficult ... Jones said Southern ...

It wasn't a terribly unusual event, by ... steadfast at the surface, deeply buried bedrock can resemble a shattered window pane. These cracks, or faults, are where earthquakes occur.

A 4.1-magnitude earthquake shook Malibu, the San Fernando Valley and other parts of Southern California on Sunday afternoon.

An alert went out in Southern California ... of earthquakes result from the constant movement of tectonic plates, which are massive, solid slabs of rock that make up the planetary surface and ...

and that’s “pretty standard for anywhere in California.” That’s because, in a single seismic event, individual faults can link up, resulting in an earthquake of a larger magnitude.

Southern California is frequently shaken by earthquakes ... steadfast at the surface, deeply buried bedrock can resemble a shattered window pane. These cracks, or faults, are where earthquakes ...

The US Geological Survey (USGS) detected the first quake, a 2.5 magnitude, outside of San Francisco, striking less than three miles of Alamo. The epicenter sits within miles of more than 100,000 ...

Both Northern and Southern California have been shaking this week as multiple light earthquakes have struck ... it occurred roughly 12 miles below the surface. No damage or injuries were ...